Apache Hadoop Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Apache Hadoop Interview Questions

Questions Answers Views Company eMail

What is Rack awareness?

954

How will format the HDFS ?

955

what are the steps involved in commissioning adding

875

How to use Apache Zookeeper command line interface?

1077

Can NameNode and DataNode be a commodity hardware?

1642

What are the steps to submit a Hadoop job?

872

What is the heartbeat used for?

1004

How would you tackle counting words in several text documents?

985

What are the Basics of Hadoop?

888

Explain the shuffle?

862

How blocks are distributed among all data nodes for a particular chunk of data?

1050

How can I install Cloudera VM in my system?

912

How we can take Hadoop out of Safe Mode?

IBM,

824

What is Writable & WritableComparable interface?

897

What will be the consideration while we do Hardware Planning for Master in Hadoop architecture?

1034

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Un-Answered Questions { Apache Hadoop }

What is high availability in hadoop?

623

What is a spill factor with respect to the ram?

819

Name the various types of lists supported by bootstrap.

620

what are the steps involved in commissioning adding

875

What is Derby database?

863

Explain the features of pseudo mode?

658

what are the nodes in the Hadoop cluster?

1003

What is the port number for NameNode

801

did you maintain the hadoop cluster in-house or used hadoop in the cloud?

972

What are active and passive "NameNodes"?

1403

What is formatting of the dfs?

776

How Mapper is instantiated in a running job?

951

What is Apache Hadoop? Why is Hadoop essential for every Big Data application?

853

What is the jobtracker and what it performs in a hadoop cluster?

606

What is the purpose of button groups?

697

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